A visible line of planets has for weeks been the talk of astronomers and hobbyist stargazers who have sought to catch a sight of our solar system's worlds. Online chatter and a frenzy of media ...

But, as soon as players hit the bizarre interior world of Revenge of the Savage Planet's secret fifth planet, things change. The sound takes on more of an electric feel, as though the player is ...

Seven planets will line up for a rare "planetary parade" today (Feb. 28) and you can watch it live online, beginning at 12:00 p.m. ET (1700 GMT).

Mars' atmosphere moves differently from Earth's due to gravity waves. These waves affect air circulation at high altitudes.

By Katrina Miller Astute skywatchers may have already seen the striking line of planets across the night sky in January. This week Mercury joins the queue. Now every other world in our solar ...

Outer planets like Uranus ... and uncovering hidden truths. The secret to thriving during retrogrades lies in going with the flow. Retrogrades aren’t about setbacks—they’re about second ...

Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard's Star, the second-nearest star system to Earth.